Tool



yFRANK DWIGHT onsTEnLn, onorari-caso, rumors, `Assistme TowE'sTERN ELECTRIC apparatus, v upset to prevent terminal nuts threaded.' thereon from being displaced. In employing the above mentioned spinning ope1";`3.tio,n,A

` rotatably mounted with-in the-body. Secured to the body-in ay position adjacent to the Patented Jane 17, 1930 rcoivrrANY,V incomoneTnn, orinuwxonx, N. Y., A coRPonaTron OFNEW YORK Y s *Y YToon Applicationnied october-i5, 1926.- serial iva-141,693." f

of threaded terminalmembers.

In spinningthetends of rods orthe like f toform heads thereoin-4 it lis the practicefin some instances to secure the work to be yspun in a fixed position withrespectto the workf ing surfacer ofa spinning. tool and thenmove the tool intoioperative engagementwith the y g' work. `Thus-for example, in theproduction' of threaded terminal posts which are used extensivelyY in variousv types of telephone the ,ends of these .posts musstl be care must; be exercised ingproperly positioning each post with respect to the toolyinl lorder touiiiformly` upset .the post end with- '5 -`out deforming the 'threads' thereof. yIn following this practice, burrs lare sometimes 'formed` whichfl must befy removed subsequent to the l*spinning operation and' in Vsome instances whenthe burrs rproduced `are very large7 thepost ijs unsuitable for use.

. The primary. objectv of thisvinvention isto provide a simple and durable tool to facilitate and accelerate spinning operations. v

'Y In accordance withthe general'features of the inventionone'embodimentfthereof contemplates the lprovision of a spinning tool vwhich comprises a body adapted for attachyment with a suitable machine7 such .asa drill,

press, lathe or thejlike'and a pair of formfr vrollers having concave working surfaces' working surface ofi-the-formingfrollers is an apertured plate member provided wltha f These' otherfobjects willi-be `rappar-ent from thef following detailed description and the accompanying drawing, wherein Y Fig.V l is an elevational view of a `spinning tool which is representativeV of one embodi-` ment ofthe invention; f f y f VFig. 2 is a fragmentaryvertical sectional view of-thetool taken on aplane extending centrallyV and transverselyzof the forming rollers;` Fig. 3 is a fragmentaryverticallsectional view taken on the lineB-S of Fig. 2,` and Fig 4; is a infli y y Y ,l Re erringlnow to ythe drawings `'wherein like numerals have. 'been .employedr to designatelsimilar parts throughout, thel various bottom view offthetool shown u iigures,jit will bel-observed that the spinning u.

toolrfdisclosedl includes apbody .ori mounting 10 which comprises a shankll terminating vina headl2. The head`12`is bifurcated by an opening 14 Vextending transverselyjfthereof andtraversing the opening ylelie a spindle 15 which is threaded into. the body l2.y 'u

.Y Revoluble upon the spindle 15within the opening-14 is a parir of forming or spinning arcuate worlzing'su'rfaces 118and 'when` the rollers are properlypositioned within lthe l rollers 17,l `Thesesrollersl'? areformed with understoodthatl the-form of contour presented by the workingy surfacesk 18,-will vbe i which the 'tool isremployed.; Secured tolle outerfend 21 andjextending transversely of thelupper lface thereof. isparibk orfprojectionf2llg, The i .u v outer surface'of this rib'241conformssubl i stantially tothe Vcontour u Y of the 4combined ,working surfaces 18 of the rollerslv? and the centralpoitionfofr theifib is c ut away by the, u countersunkaperture22as "shownl clearly iny .e g

Figs. 3 anelli. By/h'avingthe centralrpart- .of therib 2 4 @cut `awaysin'ithisJinannerjthe 1 Y f Y spinning ltool maybe .carriedffinto operative k.dependentuponnjihekgtypeof Spinning fori A, ,Y 1 v of the head-l2 by. means of screws 20s is a plate member 21" which 4has. a centralfcountersunlr *aperture'f-y 22.v Y Formed integral with the plate member Vcui a plurality'oftlie threadedy terminal posts suitable machine such asthe chuck of'a drillY press and When rotation is imparted thereto,

the tool may be loWered to operative engagement With the threaded terminal post 25.

Should the post 25 not bein exact axial align'.-

ment With thetool,`the Walls of the countersunk 'aperture' 22 'Will'serve tov properly center the'WorkY When the'tool isloWered into position and'upon the frictional engagement of the Working surfaces 18 With the terminal post the end thereof may be properly upset or spun. It Will be observed that; the plate `member" 2l renders impossible the mutilation or deformation of the threadsof the terminal postsV during the spinning operationand should burrs be produced during i the; spinning, inner edges-27 of the ribs'24 Which liefadjacent to the Working surfaces ofthe rollerl (Figs 3 and 4)'serve to effectively and positively remove or cut-away the burrs. Positioning pins 28 (Fig. l) Which v'areadapted to'e'XtendV through companion" aperturesV in the plate member 2l facilitate the proper `positioning ofthe plate upon the' head-l2ldiiring the assembling of the ,tool parts'. l

ItxWill be clear that a spinning tool ofthe type described* ispart-icularly adaptable for use in connection With spinningthe ends of 25.v A large number of these posts arein Vsome instances mounted upon a panel or plate and subsequent to the mountingthereofk terminalnuts 30 are threaded' thereon. After thenuts have been applied to all of the posts, the entire panel may be placer upon thebed of-a suitable drill pressand the spinning toolv successively carried into engagement With' the ends ofthe terminal posts'. The tapered Walls of thecountersunk aperture 22serve to guide each post' intoY proper association vWith the spinning rollers 17 and no time need be expended to accurf ately position each. postV beneath the tool. The positiveremoval by the edges `27 of anyburrs Which might be produced during Y the spinning Voperationdecreases'the number ofimperfectly spun posts and'eliininat'es the necessity' ofremoving bur-rs Vsubsequent to' the spinning as hereinbefore setV forth. Obviously, the tool'` described gisv very eiliunderstood that the invention is capable of many other applications Which are limited only bythe scope ofthe appended claims.

What is claimed is:

l.r In a spinning tool, a mounting, a formingamember carried by the ,mounting and means attached to the mounting and operating independently vof the forming member for engagingwork. associatedWith the tool tofremo've burrs produced.. by the action of the forming member.

2. In a spinning tool, a mounting, a forming member carried bythe mounting, and a burr.V removing means removably attached to the mounting. l

3. In a spinning tool, a mounting, a forming member carried by the mounting,` and an apertured element adjacentv the Working surface of the forming member.

4:5 Ina spinning-tool,v a mounting, aforming member rotatableWith respect toA and carried by the mounting, and an element having a burr removing portion'positioned adjacent the Working surface ofthe forming member and 'in fixedv relation to the mounting; f Y *Y k5."In a spinning tool, amounting, a forming roller rotatably carried by the `mounting, and a member having a portion of' its surface positioned adjacent to andvconforming inA contour vwith the Working surface ofi the forming'roller. f

6. In a spinning tool, a mounting', a forming -roller'having an arcuate Working surface rotatably carriedby the mounting,yand anV aperturedl element having` a projection Which is positioned' adjacentl 'the arcuate Working surface ofthe forming roller.

7. In a spinning tool, a mounting, forming rollers having arcuate Working surfaces 3 rotatably carriedbythe mounting, and a plate secured to' the -mountinghaving a countersunk' aperture and a pair of oppositely disposed projections for engaging Work associated With the tool. y

8. Ina spinning'tool, a mounting, a form* ing-member, and means for positioning Work With respectto the forming member, both of Which are carried -by the mounting.

In Witness whereof, I hereunto subscribe my name-this' 30th dayof September, A. D.,

`FRANKv lDWIGHT oEsTERLE.

cient'inoperation and serves togreatly'facilfi itate and accelerate spinningoperat-ions; Y i Although theY invention has been described in connection With a tool for spinning the ends of threadedterminalfposts, it is to be 

